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Ultrasonic cleaning with kirmuss and loss of high frequency details.

I just purchased the kirmuss US machine and diligently followed their instructions to cycle through minimum 3 cleanings of 5 min each with their surfactant applied each time. Upon testing my favorite vinyl and critically listening through my headphones I am convinced I’ve lost high frequency details. My background is completely silent and ticks and pops have been reduced by 95% or more. So cleaning wise it did the job. Anyone here ever experience loss of high frequency detail after repeated US cleaning? Now I’m worried I permanently damaged my favorite vinyl somehow. Please let me know, thx.
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noromance's avatar
noromance
10,042 posts
 
From my own reading, the consensus seems to be that it doesn’t do what your claiming. I have not noticed this phenomenon myself. I have noticed increased detail retrival. Although, one can argue there is no smoke without fire. However, every set-up is different. Perhaps try again with a record you do not care about. Quasi-scientific analysis needs multiple tests to confirm the hypothesis. One test is to stop the rotation, and let the ultrasonic burn away at the submerged part for 20 mins. Playback should not have a modulation of a frequency change every half cycle.
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genesis168's avatar
genesis168
412 posts
 
I have the same machine. I don’t do what they do. All I do (for brand new or never cleaned records) is to manual wash and vac with a traditional machine then throw it in for a 5 min cycle. Then rinse clean and vac dry. Works well and it unlocks an amazing amount of detail. Mostly spatial information. No detectable loss in high frequencies. For previously cleaned records, I just throw it in for a 5min cycle, then rinse and vac dry. 
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